sound effects needed in the trailer

we do not want the trailer to look cheap so we will only use sound effects which are really needed, which will create a greater atmosphere for the action seen on screen. Some of the chosen sound effects which will be needed in the trailer include:

• a range of gun shots
• glass smashing
  
• guns being reloaded
• car engine roaring
• someone falling down onto the ground
• a punch
  
• police sirens