In the movie Remember Me (2010), actor Robert Pattinson wears Ray-Ban RB 2140 Wayfarer sunglasses with a tortoise frame.

Although on some photos the frame looks black, he is wearing tortoise-colored Wayfarers in the film. In a close-up photo (see this website) the tortoise frame can clearly be seen. He may have worn a black frame version as well on set, see for example here.

The Ray-Ban Wayfarer sunglasses are one of the most popular sunglasses ever made and can be seen on many celebrities.

Get the tortoise frame Ray-Ban Wayfarer sunglasses on Amazon or at the official Ray-Ban website.

Also available on eBay, or on Pret-A-Voir.

Reference: Ray-Ban Wayfarer - Color: Havana (tortoise) frame color code 902