Robert Pattinson became emotional on his last day of shooting with Tai, his elephant co-star in Water For Elephants.

He explained, "I'm going to miss her. I cried when the elephant was wrapped. I never cried when anyone else was wrapped."

In "Water For Elephants," a handsome veterinary student falls for a married circus performer. When Jacob (Pattinson) meets Marlena (Reese Witherspoon), it's love at first sight -- their shared affections for an extraordinary elephant stir profound feelings of compassion within both of them.

Theirs is a love that could span lifetimes, though the wrath of Marlena's dangerously domineering husband, August (Christoph Waltz), threatens to spell tragedy for all involved.

The romantic drama is adapted from author Sara Gruen's best-selling novel.