In the opening scenes, a man climbs a wide expanse of steps, with a large rubbish bin situated at the commencement of the steps. As he reaches the concrete bollards across the top of the steps he turns to face somebody and is stabbed. In the next shot he is rolling down the steps, but someway from the bollards where he stopped and clatters into the rubbish bin which is no longer at the base of the steps. Whilst the man is rolling over, there is no evidence of his having being stabbed, but when a policeman reaches him, there is a long bladed knife protruding from his chest.
The flight from Lisbon to Mozambique is in a Lufthansa aircraft. Since the flight was between Portuguese territories, the direct route would have been a TAP flight.
When the passengers are getting off the aeroplane when it arrives in Mozambique, the covers are on the engines. It is highly unlikely they would have been put on immediately after landing.