The speed of light is the speed limit of the universe, nothing known to man travels faster.
The Cern neutrino experiment might void this assumption.
In regard to the bending of light - it is due to the "warping of space" due to high gravitational fields. What is warped space? What is actually happening is that time slows down as the gravitation increases. So due to the constant speed of light, it goes through space with a different time, thus bending.