Zach Galifianakis planning to wed longterm girlfriend

Funnyman ZACH GALIFIANAKIS is getting serious about marriage after asking his longtime partner to be his wife.

The Hangover star, 42, and his new fiancee Quinn Lundberg are planning an August (12) wedding, according to Celebuzz.com.

Invites sent to family and friends feature a drawing of Galifianakis and his 29-year-old bride-to-be, sketched by the actor himself.

A source says, "He made sure he looked like a little troll, while Quinn is a stunning tall blonde princess."

Last year (11) in an interview with Rolling Stone magazine, the movie star confessed he dreamed of starting a family with Lundberg.

He told the publication, "I've been wanting kids for 10 years. I'd love to adopt, have them naturally - all of it. I want, like, 15."