Froch, 37, will make his screen debut in a film called Once Upon a Time In London.
The Nottingham fighter has consulted industry legends such as Samuel L Jackson for tips and said he will play a "tough guy or a villain".
"I'll probably be chucking someone in the River Thames," said Froch.
Froch, who admits he is "in a bit of a dilemma" whether he should continue his boxing career, would not be the first fighter to swap the sweat of the gym for the glare of the camera.
Former heavyweight champion Mike Tyson played a cameo role in recent Hollywood hit The Hangover, while Irish former middleweight champion Steve Collins held a minor part in Lock Stock and Two Smoking Barrels.
"I'm by no stage of the imagination an actor, I don't think you're listening to the next Robert De Niro," Froch told BBC Radio 5 live.
"[Former footballer] Vinnie Jones did well out of it, I think [former Commonwealth diver] Jason Statham did well from no real experience and they've gone on to have good careers.
"When I was on the Jonathan Ross Show I met Sir Ben Kingsley - acting royalty - I've met Samuel L Jackson, Michael Douglas. I've been talking to them and asking how they got into it. Nobody became a superstar overnight.
"A lot of the time they play themselves, so that was the advice: be yourself."
Froch, who has 33 wins from 35 fights, last competed when he knocked out George Groves at Wembley Stadium in May 2014.
He has since appeared on BBC gymnastics show Tumble and said he was envious of former Manchester United striker Dion Dublin, who has landed a role presenting Homes under the Hammer.
He vacated the IBF world title earlier this year and fellow Briton James DeGale will now fight American Andre Dirrell for the belt on 23 May.
Froch added: "The only two things left for me to do would be to fight at the Nottingham Forest City Ground that'll hold 30,000 and they'll be all loyal my fans, or in Las Vegas.
"[Mexico's] Julio Cesar Chavez Junior is fighting in April and that's a fight that could still happen for me in August or September."
You can listen to Carl Froch's interview on BBC 5 live in short.

The 38-year-old played more than 100 games for the Black Caps in all formats and was a key figure as they reached the 2015 World Cup final.
Bears sport director Ashley Giles said: "Grant has proven himself as a match-winner on the biggest stage.
"He top-scored in the final and semi-final of the World Cup in 2015 and has a wealth of T20 experience."
To join the county as a non-overseas player under the Kolpak ruling, South Africa-born Elliott has ended an international career in which he played five Tests, 83 one-day internationals and 16 Twenty20 internationals since making his debut against England in 2008.
He joins fellow countrymen Colin de Grandhomme, who signed for the Bears earlier this month, and Jeetan Patel at Edgbaston.

Sarah Papachristophorou admitted supplying substances to the victim, 77, and stealing up to Â£1,000 from him.
The 47-year-old, who worked as a nurse for more than 20 years, was sacked from her job at Birmingham's Queen Elizabeth Hospital following the allegations.
She was caught when the victim's relatives set up a secret camera.
CCTV showing her taking cash was played at her Birmingham Crown Court sentencing.
The former health worker had also pleaded guilty to supplying the man, who was a family friend, with zopiclone, tramadol and diazepam.
She had taken the class C drugs from her work, which the sentencing judge described as "a gross breach of ethics".
Papachristophorou's barrister Daniel Church asked for a suspended jail term, adding the former nurse, of Four Oaks, Sutton Coldfield, had shown genuine remorse.
But Judge Philip Parker QC said the aggravating features of the case were "odious and despicable" and jailed the married mother of two for 12 months.
A spokesman for the University Hospitals Birmingham NHS Foundation Trust said Papachristophorou no longer worked for the organisation, having been dismissed on 10 May.
WBA super-middleweight champion Carl Froch is set to take his first steps on the road to Hollywood stardom while he considers his future in boxing.
[NEXT_CONCEPT]
Birmingham Bears have signed former New Zealand all-rounder Grant Elliott on a Kolpak deal for the T20 Blast.
[NEXT_CONCEPT]
An NHS hospital nurse who supplied a man with prescription drugs taken from her workplace has been jailed for what a judge called "despicable" crimes.