James McAvoy to star in 'At the Mountains of Madness'? + TIFF appearance speculation

Guillermo del Toro's 3D adaptation of H.P. Lovecraft's At the Mountains of Madness, is set to shoot in May of 2011. Universal reportedly wants James McAvoy in the lead role, while del Toro wants Tom Cruise instead. Both actors would presumably be free at the time, though at this point both actors aren't even officially attached to the project. A synopsis of Lovecraft's novella is below:

The story is written in first-person perspective by the geologist William Dyer, a professor from Miskatonic University. He writes to disclose hitherto unknown and closely kept secrets in the hope that he can deter a planned and much publicized scientific expedition to Antarctica. On a previous expedition there, a party of scholars from Miskatonic University, led by Dyer, discovered fantastic and horrific ruins and a dangerous secret beyond a range of mountains taller than the Himalayas. [Wikipedia via Collider]

The Conspirator will make its world premiere at the Toronto International Film Festival later this month, but there hasn't been official confirmation on whether or not James McAvoy would make an appearance in Toronto. According to an Exclusive Artists Management press release, James will be at the festival:

Exclusive Artists Management will be providing celebrity hair and makeup artists to participate at this year's Toronto International Film Festival for the seventh consecutive year.

...Some of the confirmed actors that our teams will be getting camera ready include Helen MIrren, Carey Mulligan, Evan Rachel Wood, James McAvoy, Rachel Weisz, Frieda Pinto, Minnie Driver, Vera Farmiga, Kristen Scott Thomas, Bryce Dallas Howard, Winona Ryder, Michael Sheen, Thomas Hayden Church, Chris Cooper, Josh Lucas, Amy Ryan, Sam Rockwell, Zach Galifianakis, Amber Tamblyn, Dominic Cooper, Kate Mara, Jim Broadbent and Melissa Leo