Big Daddy (1999)

Sonny is a thirty-something lawyer who hates responsibilities, but when his girlfriend leaves him for an older man, he decides to show her that he can be different. To impress her, he adopts Julian, a five-year-old boy. Along the way, Sonny establishes a caring relationship with Julian and what was a selfish idea becomes something very meaningful. This comedy is one of the most successful films of Adam Sandler's career, with a tender story and plenty of laughs to have a good time.