Tickets for the world's first tourist space flight planned for 2008 have been snapped up by celebrities and royalty. The commercial spaceline said that tickets were sold to its first 150 passengers at $200,000 per ticket.

Some of the takers were former soap star Victoria Principal, designer Philippe Starck, and a unidentified senior member of a royal family have all bought tickets for the world's first tourist space flights planned for 2008. Meanwhile, Bryan Singer, the director of "Superman Returns," has also signed up.

The commercial spaceline, called Virgin Galactic, is owned by billionaire and daredevil aficionado Richard Branson. It has scheduled to launch sub-orbital flights for 2008.

Virgin Galactic President Will Whitehorn told Reuters that 300 potential passengers were going through a detailed reservation process while 60,000 had registered interest via Web site.

Final design work on the Virgin's SpaceShipTwo spacecraft will be finished next year.

"Everything is progressing on time and on budget. I think we will be pulling it out of the hanger next summer," Whitehorn told Reuters.

The spacecraft will be based on SpaceShipOne, which garnered the $10 million Ansari X prize in 2004. The contest was for the first private organization to send a reusable manned spacecraft into space twice within two weeks.

Customers will spend 15 minutes in space with five minutes of weightlessness.

Space Adventures is also a competitor at the space tourism industry. It is a U.S.-based company that has sent three space tourists on a Russian Soyuz rocket to the International Space Station at $20 million each.