I've seen some elaborate wedding entrances in my day... but this one tops the cake (no pun, ok pun, intended). 

"Bride and groom ride a zipline into their reception. Problem is groom gets ahead of steam and rams into the bride and eats it. No worries, he walks it off like it was all part of the plan!"

I don't know what's better... the groom biffing it OR the camera guy at the end laughing hystarically and telling his buddy he's going to put him on YouTube...