is the song part of an album?
Yes, it is from "Doo-Wops & Hooligans" album
Introduction
"Count on Me" is a song by American singer-songwriter Bruno Mars from his debut studio album, "Doo-Wops & Hooligans" (2010). 
what movie is count on me by bruno mars in UNANSWERABLE
Yes, "Doo-Wops & Hooligans" "Doo-Wops & Hooligans". Yes, "Doo-Wops & Hooligans"
Count On Me (Bruno Mars song) Count On Me (Bruno Mars song) Count On Me (Bruno Mars song)
Introduction Introduction Introduction
"Doo-Wops & Hooligans"  "Count on Me" is a song by American singer-songwriter Bruno Mars from his debut studio album, "Doo-Wops & Hooligans" (2010).  "Count on Me" is a song by American singer-songwriter Bruno Mars from his debut studio album, "Doo-Wops & Hooligans" 
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Count On Me (Bruno Mars song) [SEP] Introduction
"Count on Me" is a song by American singer-songwriter Bruno Mars from his debut studio album, "Doo-Wops & Hooligans" (2010). The song was first unveiled on Mars' debut extended play, "It's Better If You Don't Understand" (2010). It was released as a radio single in Australia and served as the overall sixth single from "Doo-Wops & Hooligans", being serviced to contemporary hit radio and adult contemporary radio in on November 7, 2011. It was composed by Mars, Philip Lawrence, and Ari Levine, under their alias, The Smeezingtons. Musically, "Count on Me" is a folk and tropical record that lyrically details the importance of friendship and convey a positive message.