Variety notes that among the films attracting delight at this year’s Tribeca Film Festival (tickets here) are the revenge-of-the-nerd comedy “Beware the Gonzo,” Ed Burns’ dramedy “Nice Guy Johnny,” the cult doc “Sons of Perdition,” the Serge Gainsbourg biopic “Gainsbourg Je T’Aime…Moi Non Plus.” Variety critic John Anderson likes the James Franco plane crash drama “William Vincent” (review here), gives a thumbs-up to the Billy Joel/Shea Stadium doc “The Last Play at Shea” (review here) and praises the Irish psychological crime drama “Snap” here. There is a lot to see and only a little time left.