Mikael Håfström will direct a film version of "Tunnels," a fantasy adventure book series, for Relativity Media.
Håfström has previously worked on "The Rite" and "1408." Andrew Lobel is rewriting the original screenplay by Joel Bergvall & Simon Sandquist, the studio said.
"Tunnels," follows two teenage boys who discover a secret civilization beneath the streets of London. All this subterranean wonder has a downside, however. They also find evil forces who threaten to destroy the world above.
Authors Roderick Gordon and Brian Williams have completed five sequels. The sixth and final book in the series, "Terminal," is scheduled to be published in the U.S. this fall.
The "Tunnels" film is being produced by Mark Canton ("300"), Neil Canton ("Back to the Future") and Danny Davids, alongside Relativity CEO Ryan Kavanaugh. Relativity’s President Tucker Tooley ("The Fighter") will executive produce the film with Kelly Dennis ("1408").
Håfström is represented by WME. Lobel is represented by WME and Madhouse Entertainment.