'Princess Bride' Star Sued Broken House Deal? A Battle of Wits!

3/8/2015 12:25 AM PST

'Princess Bride' Star Cary Elwes Sued -- Broken House Deal? A Battle of Wits!

EXCLUSIVE

"Princess Bride" star Cary Elwes got right up to the altar with the guy who was going to buy his Malibu home, and then jilted him -- so now he's getting sued for backing out on the sale.  

According to the docs ... Tris Felder says Elwes agreed to sell the pad to him for $1.7 mil -- but when it came time to deliver the $51k deposit ... Elwes rejected it and called off the whole deal.  

In the suit, Felder admits he doesn't have a signed purchase agreement -- but says Elwes did sign the counteroffer letter ... and that's enough to make the sale legit. If he doesn't get the keys ... he wants at least $500k in damages.  

In other words ... "You killed my father. Prepare to die."