Leap year starting on Monday
A leap year starting on Monday is any year with 366 days (i.e. it includes 29 February) that begins on Monday, 1 January, and ends on Tuesday, 31 December. Its dominical letters hence are GF, such as the years 1912, 1940, 1968, 1996, 2024, 2052, 2080, and 2120 in the Gregorian calendar or, likewise, 2008, 2036, and 2064 in the obsolete Julian calendar. 
Any leap year that starts on Monday, Wednesday or Thursday has two Friday the 13ths. This leap year contains two Friday the 13ths in September and December. Common years starting on Tuesday share this characteristic.
Leap Year (2010 film)
Successful real estate stager Anna Brady (Amy Adams) is frustrated that her cardiologist boyfriend Jeremy Sloane (Adam Scott) still has not proposed to her after four years. She decides to travel from Boston to Dublin, to propose to him on February 29, leap day, while he is there at a conference. Anna wishes to invoke an Irish tradition that a man who is proposed to on leap day must accept the proposal.