Actor Kurt Russell declared he was astonished by his co-star, Dakota Fanning's performance in the in forthcoming film "Dreamer".

Russell, 54, who plays as Dakota's father in the movie, declared she is the best actress he worked with in his entire career and that he was astonished by her acting ability and well-rounded attitude.

Russell says, "I guarantee you, (Dakota) is the best actress I will work with in my entire career."

Speaking of her film reviews, Fanning says philosophically, "That's just somebody else's opinion. I don't think that's really for me to worry about."

According to official website, Kurt Russell (Ben Crane), Dakota Fanning (Cale Crane) and Kris Kristofferson (Pop) star in a drama about a father who, for the love of his daughter, sacrifices almost everything to save the life of an injured racehorse and bring the promising filly back to her former glory.

Ben Crane was once a great horseman, whose gifts as a trainer were now being wasted on making other men's fortunes.

Sonya was a great horse whose promising future on the racetrack was suddenly cut short by a career-ending broken leg. Considered as good as dead to her owner, who also happens to be Ben's boss, Sonya is given to Ben as severance pay, along with his walking papers.