Claudia tells Sir Henry that she's staying at the Cathcart Towers hotel. Cathcart Towers is the fictional hotel featured in A Fish Called Wanda (1988)
Joel Grey previously starred in Remo Williams: The Adventure Begins (1985) as Chiun. At the finale of that film he was shown 'walking on water', a not uncommon illusion for magicians like Monty the Magnificant, and most famously performed by Dynamo in 2011 when he crossed the Thames.