If your Dad is a golf fanatic:
Forget Adam Sandler, go old school with
"Caddyshack" ( 1980) - Don't bother trying to improve on this - its LOL funny, has interesting guest stars and a quotable script.
If your Dad loves bowling:
Ignore the strange wigs,
"Kingpin" (1996) - Over the top stupid concept works because Woody Harrelson and Dennis Quaid are just plain funny guys.
If your Dad loves bowling, gangsters, cowboys and irony:
Just don't try to harsh his buzz,
"The Big Lebowski" (1998) - Amazingly well written road romp, pot head gangster movie with bowling...watch for those acting moments with Goodman, Turturro, Moore and some surprises.