Date with an Angel (1987)

"Jim is about to marry a princess... but he's in love with an angel."

Aspiring composer Jim Sanders is engaged to spoiled rich girl Patty. But the morning after his bachelor party, Jim wakes up to discover a beautiful, broken-winged angel in his pool. When everyone finds out about his heavenly houseguest, Jim must cope with a dangerously jealous fiancée, an exploitive future father-in-law and a group of buddies with an outrageous business plan!