Russian PM Vladimir Putin has praised Leonardo DiCaprio as “a real man” for his persistence in getting to a St Petersburg summit on saving tigers.His first plane was forced to make an emergency landing after losing an engine, while a second had to stop after encountering strong headwinds.”I would like to thank you for coming despite all the obstacles,” Mr Putin told DiCaprio at the conference.DiCaprio has pledged $1m (£635,000) to the effort.Mr Putin broke off from a prepared speech after he spotted DiCaprio in the audience.”A person with less stable nerves could have decided against coming, could have read it as a sign – that it was not worth going,” Mr Putin said.The prime minister said that, in Russia, DiCaprio’s efforts made him a “muzhik” – or “real man” – Bbc