Marvel had sent the brief out worldwide to a number of vfx companies to see how they would treat the look of the bifröst. Director Kenneth Branagh hadn't seen anything he liked and had decided to remove it from the film.
The creative pitch we made was an idea for the opening title sequence for Thor. This was well received by Marvel. The sad news was they had decided NOT to do an opening title sequence for the film, however they loved the look we had established for the Bifröst in our pitch.
Fuelvfx was then awarded all the sequences in the film when Thor and his cohorts travel between Earth, Asgard and Jotunheim via the Bifröst.