Lohan, Knightley to be on-screen lovers?

Photorazzi / Janet Mayer

Lindsey Lohan and Keira Knightley will star in a new film in which they play two women who are sexually attracted to one another.

Speaking of the film Lohan told MTV: "Keira is older than me, but she kind of has a mysterious relationship with my lover and there's somewhat of a lesbian undertone."

The film is based on a true story and revolves around the Welsh poet Dylan Thomas.

The script was written by Knightley's mother, Sharman MacDonald .