The British actor has been linked with the challenging roles recently and has admitted he is definitely on board with the project, which will be called Legend.
The Inception and Batman star will take on the tricky task of playing both Ronnie and Reggie Kray simultaneously and while he admits it will be a challenge, it is one he relishes.
"I'm on that right now," Hardy said.
"I've got to work out how to play both twins, which will be fun.
"It's another experiment and I'm really looking forward to it. I'm not going to put too much pressure on myself, I just want to have some fun and see what's out there and explore with the work.
"The more of a challenge I give myself, the easier it is to take on more projects which are complicated in the future, if that makes sense.
"It might not be the greatest movie in the world, but that's not the pressure you put on yourself."
Hardy, who visited Birmingham this week to attend the premiere of his new film Locke, sees similarities between the two projects.
"We certainly didn't put any pressure on ourselves with Locke."