Getty Images

Tom Cruise is dealing with a new – and very unexpected – reality of life alone since his seven year marriage to Katie Holmes abruptly ended. 

Based in London since mid-August, where he is deep in pre-production for the sci-fi action film All You Need Is Kill, the 50-year-old actor has been unable to see his 6-year-old daughter for nearly two months. (The pair were last together on Aug. 5, following a Walt Disney World vacation.) 

"I've got to see her," an emotional Cruise told a friend recently. "I miss her." 

Several sources tell WHO Magazine in it's upcoming issue that the actor's rigorous film commitments – which he made well before his ex, Katie Holmes, filed for divorce and sole custody on June 29 – have presented an exceptional challenge in terms of seeing Suri. 

• PHOTOS: The Holmes-Cruise Family in Happier Times

Getty Images

With Suri now based full time in New York City, where Holmes enrolled her in Manhattan's private Avenues school, she has far less flexibility to visit him on set than under her previous home-school arrangement. Several sources say that a planned visit to London in mid-September was called off. 

Still, the newly minted first-grader is a fixture in her father's life, speaking with him several times a day. 

"I can tell you that I haven't had a meeting with Tom that was not interrupted by a phone call with his daughter," says his friend, screenwriter Christopher McQuarrie, who has worked with Cruise on four films.

"His heart is broken. He misses his little girl and works very hard at parenting," Macquarie added.

As for rumours Scientology is to blame for Cruise spending time with Suri, longtime Cruise pal, Bert Fields, told WHO that the allegations are "hogwash."

"This has absolutely nothing to do with Scientology," Fields added. "This is something that’s been going on her whole life – when Tom is shooting a film out of the country, he has to rely on the telephone."

• PHOTOS: TomKat: The Way They Were

For much more on Cruise's life now – including his nights out in London, how he and Holmes are getting along and his future plans with Suri – pick up this week's issue of WHO Magazine, on newsstands Friday.