How do I fix a house plant that got too hot?

Question:I recived a Calla Lilly and I had to leave it in the car for about an hour. It was really hot outside but I cracked the windows. When I came out the plant had wilted. I don't know what to do for it to make it stand up again. I have put it outside for a day and in the sun for a couple hours and it didn't help. It has plenty of water... I am new to plants... please help!

Answers:
Keep it somewhere fairly cool, but not cold, and make sure it keeps getting plenty of water. The flower may die, but the plant won't, and new buds should come back...